.sessions {
  .form-signin {
    width: 100%;
    max-width: 420px;
    padding: 15px;
    margin: 0 auto;

    .form-label-group {
      position: relative;
      margin-bottom: 1rem;
    }

    .form-label-group > input,
    .form-label-group > label {
      padding: var(--input-padding-y) var(--input-padding-x);
    }

    .form-label-group > label {
      position: absolute;
      top: 0;
      left: 0;
      display: block;
      width: 100%;
      margin-bottom: 0; /* Override default `<label>` margin */
      line-height: 1.5;
      color: #495057;
      border: 1px solid transparent;
      border-radius: .25rem;
      transition: all .1s ease-in-out;
    }

    .form-label-group input::-webkit-input-placeholder {
      color: transparent;
    }

    .form-label-group input:-ms-input-placeholder {
      color: transparent;
    }

    .form-label-group input::-ms-input-placeholder {
      color: transparent;
    }

    .form-label-group input::-moz-placeholder {
      color: transparent;
    }

    .form-label-group input::placeholder {
      color: transparent;
    }

    .form-label-group input:not(:placeholder-shown) {
      padding-top: calc(var(--input-padding-y) + var(--input-padding-y) * (2 / 3));
      padding-bottom: calc(var(--input-padding-y) / 3);
    }

    .form-label-group input:not(:placeholder-shown) ~ label {
      padding-top: calc(var(--input-padding-y) / 3);
      padding-bottom: calc(var(--input-padding-y) / 3);
      font-size: 12px;
      color: #777;
    }
  }
}